#3A53CC
Closest named color: Warm Blue (#4B57DB). oklch(49.8% 0.189 269.3), rgb(58, 83, 204).
Aa
White text reads best on this color (6.38:1).
About this color
#3A53CC is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.189 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.034 away. White text reads best on it, at 6.38:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.28:1 |
| White text | 6.38:1 |
Values
| HEX | #3A53CC |
| RGB | rgb(58, 83, 204) |
| HSL | hsl(230, 59%, 51%) |
| OKLCH | oklch(49.8% 0.189 269.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3A53CC | 6.38:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #3A53CC | 3.28:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #3A53CC text on white | 6.38:1 | AA | Lc 81.2 | Fine for body text |
| #3A53CC text on black | 3.28:1 | AA large text | Lc -20.7 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CBD8FC
oklch(88.4% 0.052 269.6)
-
Step 300
300
#A9BEFD
oklch(80.8% 0.092 270)
-
Step 400
400
#7C9AFB
oklch(70.6% 0.146 269.4)
-
Step 500
500
#5D7EF9
oklch(63.2% 0.187 269.2)
-
Step 600
600
#4663E8
oklch(55.6% 0.203 269.3)
-
Step 700
700 (this color)
#3A53CC
oklch(49.8% 0.189 269.3)
-
Step 800
800
#2E43A3
oklch(42.7% 0.157 269.2)
-
Step 900
900
#283A81
oklch(37.7% 0.122 269.1)
-
Step 950
950
#18234C
oklch(27.1% 0.077 269.4)
#3A53CC with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0066D0 | 0.050 |
| Deuteranopia (no green cones) | #0058CA | 0.035 |
| Tritanopia (no blue cones) | #007187 | 0.151 |
| Achromatopsia (no color) | #5F5F5F | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A53CC
#3A53CC
oklch(49.8% 0.189 269.3)
- #7A5F00
#7A5F00
oklch(49.9% 0.102 89.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3A53CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.034
- Blue Blue #2242C7 ΔE 0.050
- Blue With A Hint Of Purple #533CC6 ΔE 0.055
- Azul #1D5DEC ΔE 0.056
- Majorelle Blue #3F37C9 ΔE 0.058
- Iris #6258C4 ΔE 0.058
- Blurple #5539CC ΔE 0.060
- Royal Blue #4169E1 ΔE 0.063
Use #3A53CC in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.